Low Linear Shrinkage Short Curing Time Liquid Silicone Rubber For
Mold Products
Description
RUI-HE 6250-40MJS® is a kind of two-component liquid silicone rubber for injection
molding processes, consisted of part A and part B. It can be used
to produce the production of molding and can be made mold for the
other materials forming with good fluidity, high temperature
resistance, corrosion resistance and high tear resistance,
lowshrink-age rate, high complex modulus. All LSR are platinum
cured (vulcanized) materials which are mixed in a 10: 1 ratio by
weight.
Key Features and Benefits
- Stable dimensionality
- Good mold release property
- High adhesion to the cloth
- Convenient use
- Small viscosity of the rubber compound
- Low linear shrinkage
- Resistance to pulling
- Strong flexibility
- Excellent ozone and ultraviolet aging resistance
- Good three-dimensional effect
- Non-toxic, tasteless, and very biocompatible
- Fast ccuring
- Strong adhesive
- Good flow performance
- With excellent thermal stability
Typical Properties
| 6250-40MJS® |
| Unit | Part - A | Part - B |
| Appearance | / | tranparent | tranparent |
| Shore A Hardness | A | 40 |
| Tensile Strength | MPa | 5.5 |
| Elongation | % | 350 |
| Tear Strength | KN/m | 14 |
These figures are for reference only, please contact us for
details.
Mixing ratio of components A : B = 10 : 1.
Vulcanization: 150 °C / 5 min
Applications
Because of the outstanding properties 6250-40MJS® liquid silicone
rubber is particularly suitable for producing high transparent &
high precision silicone rubber molding. It also can be made mold
for the other materials forming
Certificate
Rui-He 6250-40MJS® Liquid silicone rubber obtained the following test certificate:
RoHS, FDA.21.177, REACH, PAHS, ISO9001:2016, etc
Packaging & Storage
Available in 20kg pails or 200kg drums.
Store in a cool, dry place out of direct sunlight, use it within 12
months from the day of manufacture.
Notice
This product cannot be contacted with compounds containing N, P, S
to avoid affecting the catalytic effect of platinum.
Tips
Q: How many kgs of silicone I need to make a mold, like 1m*1m?
A: First, you change the "m" to "cm". Then the
V(volume)=100cm(length)*100cm(width)*1.5cm(height or thickness)
=15000cm3
→ the density of the liquid silicone is 1.1g/cm3→ the quantity= 15000cm3* 1.1g/cm3=16500g(16.5kg)
Q: How can I know the thickness of the silicone mold?
A: For the pouring way, if you do not have a plaster have a base to
keep its shape (like square), then we usually suggest that 2-3cm is
enough. If yes, then 1-1.5 cm is enough.
Q: Why is there not enough 25kgs silicone in the drum?
A: V=m/p. because the different of the silicone viscosity, so there
will be a little difference. When the viscosity is lower, there
will be 26kgs or more. In contrast, there will be 24kgs or little.
If you need to know the prices of our silicone rubbers, please
contact us. We do not provide prices in website because prices
fluctuate for many reasons.
